End support for spiral conveyers.



No.70|,969. Patented lune l0, I902) J. C. VAN ARSDELL.

END SUPPORT FOR SPIRAL CONVEYEPS.

(Application filed Dec. 17, 1901.)

(No Model.)

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UNIT D STAT PATENT O FIGE'."

JOHN c. VAN ARSDELL, OF DALLAS, TEXAS;

END SUPPQIORT'FOR SPIRAL CONVEYERS.

SPECIFICATION for: ing part of Letters Patent No. 701,969,1'datedJune 10, 19 02.

Application filed December 17,1901. Serial No. 861307, (No model.)

To aZZ whom it may concern..-

Be it known that I, JOHN G. VAN ARsDELL,

a citizen of the United-States, residing 'at Dallas, in the county of Dallas and State offlexa's,

have inventedcertain new and useful'fImprovements in End Supports for Spiral Conveyers, of which the following. is a specification.

This invention relates to improvements in spiral conveyers, and more particularly to end supports for the flightsor to; means for securing the flights to the shaftsofjthecom veyers; and the object is'to construct devices for clamping the shafts-and to be riveted to the flights in such manner as to be firm supports for the ends of the flights and to be compact, with no abrupt shoulders to obstruct the passage of materialthat is going through the conveyer.

Other objects and advantages will be fully understood from the following. description, and the invention will; bemore particularlypointed out in the claims.

Reference is had to the accompanying drawings, forming apart of this application and specification.

Figure l'is. aside elevation of an end support constructed according to my invention. Fig. 2is a similar view of the support attached to the shaft andengaging a section of a flight, the end of the shaft being shown. Fig. 3 is a perspective view of the end of a shaft and flight, showing the flight secured to Fig. 4is

, point, as it issoiconstructed that it will not interfere with the passage of material, and it will not weaken the shaft, because no rivet or bolt holes have to' be made in the shaft.

My improved support consists of a clamp A, having the extended arms B and E for engaging the flight F. The arms B and'E are proing the arms to the flights.

thelast above was made. ing with the boltK makes the work or func tion of my improved clamp similar to a hoseclamp, and the shaft is not weakened by havvided with several bolt-holes or rivet-holes G, through'which bolts may be passed for secur- The flights must have holes registering with the holes G for the passage of the bolts. The heads of-the bolts H are. all countersunk in the arms'B or E, and the riveted portions of the ends of the bolts arealso countersunk in the arm E or B, just as the head and the nut of thebolt K is countersunk in these arms. A portion of each arm B and E is broken away .to show how the parts of the bolt K are countersunk therein. The bolt K isused to tighten the clamp or'collar A on the shaft P or the collarR. The collar R is :for strengthening the conveyer-pipe. shaft.-

couplings. Inthe conveyers in use some have lings. This is why'the statementp'revious to The act of clamp ing holes made therein. The arms B- and E may be made'heavier at the point at which the bol'tK passes through. The. nut on the bolt K may be co'untersunk in the arm E, so that the nut will not obstruct the passage of material.- only one wall of the pipe-shaft and has the head thereof countersunk in the clamp A.

The supports are to be made in various sizes to suit the conveyers on which they are to be used. The arms B and E can be adapted to flights ofany pitch, and the clamp may be adapted to engage a shaft of any diameter. For variations of the pitch of the flights it will be necessary'only to'twist the arms B and E more or less.

The spiral conveyers now in use have the flights secnredto the shafts by means of lugs, which are screwed into the shafts and then riveted to the flights.- a v The advantage of myimprovements be readily understood. :There are no holes to be The s'et-scr'ewD extends through made in the shafts, and the'cla'mps' engage the shafts and are tightened thereon, draw= ing the flights againstthe shafts; andthereby making the flights more rigid with the shafts. At the same time the shape of the clamp does not cause any material obstruction to the passage of the material through the conveyer.

Having fully described my improved support, what I claim as new, and desire to secure by Letters Patent, is-- 1. A clamp for supporting the flights of spiral conveyers having a body portion for engaging the shaft of the conveyer and having arms to be riveted to the flight and means for tightening the said body portion on said shaft and drawing said flight against said shaft.

2. A clamp fol-supporting the flights of spiral conveyers having a body portion for engaging the shaft of the conveyor, arms to be riveted to the flight, a bolt for tightening said body portion on said shaft and drawing the 15 flight against said shaft, and a set-screw for preventing the said body portion from sliding on said shaft.

In testimony whereoflset my hand, in the presence of two Witnesses, this 11th day of De- 2o cember, 1901.

JOHN C. VAN ARSDELL.

\Vitnesses:

A. L. JACKSON, J. W. STITT. 

